<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <el-table :data="userList" style="width: 100%" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"> </el-table-column>
        <el-table-column prop="email" label="邮箱"> </el-table-column>
        <el-table-column prop="mobile" label="电话"> </el-table-column>
        <el-table-column prop="role_name" label="角色"> </el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              active-color="#00ffff"
              inactive-color="#C0CCDA"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <el-tooltip content="编辑" placement="top" :enterable="false">
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <el-tooltip content="删除" placement="top" :enterable="false">
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserById(scope.row.id)"
              ></el-button>
            </el-tooltip>
            <el-tooltip content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户对话框 -->
    <el-dialog
      title="添加用户信息"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClose"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" show-password></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClose"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <!-- 内容主体区域 -->
      <div>
        <p>当前的用户:{{ this.userInfo.username }}</p>
        <p>当前的角色:{{ this.userInfo.role_name }}</p>
        <p>
          分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="v in rolesList"
              :key="v.id"
              :label="v.roleName"
              :value="v.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span></el-dialog
    >
  </div>
</template>

<script>
export default {
  name: 'Users',
  data() {
    // 验证邮箱的规则
    let checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return callback()
      } else {
        return callback(new Error('请输入合法的邮箱!'))
      }
    }
    // 验证手机号的规则
    let checkMobile = (rule, value, callback) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return callback()
      } else {
        return callback(new Error('请输入合法的手机号!'))
      }
    }
    return {
      //查询用户数据信息
      queryInfo: {
        query: '',
        pagenum: 1, //当前的页数
        pagesize: 2 //当前的一页展示的个数
      },
      //展示区用户数据列表
      userList: [],
      total: 0,
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在 3 到 10 个字符之间',
            trigger: 'blur'
          }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '密码的长度在 6 到 15 个字符之间',
            trigger: 'blur'
          }
        ],
        email: [
          { required: true, trigger: 'blur', message: '请输入邮箱' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, trigger: 'blur', message: '请输入手机号' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户信息对象
      editForm: {},
      editFormRules: {
        email: [
          { required: true, trigger: 'blur', message: '请输入邮箱' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, trigger: 'blur', message: '请输入手机号' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      setRoleDialogVisible: false,
      userInfo: {},
      rolesList: [],
      selectedRoleId: ''
    }
  },
  methods: {
    //获取用户数据列表
    async getUserList() {
      let res = await this.$http.get('/users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        this.$message({
          type: 'error',
          message: res.meta.message,
          duration: 1500
        })
        return false
      } else {
        this.userList = res.data.users
        this.total = res.data.total
      }
    },
    //监听pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //监听pagenum改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 更新用户状态
    async userStateChanged(newUserInfo) {
      let res = await this.$http.put(
        `/users/${newUserInfo.id}/state/${newUserInfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        this.$message({
          type: 'error',
          message: '更新用户状态失败!',
          duration: 1500
        })
        newUserInfo.mg_state = !newUserInfo.mg_state
        return false
      } else {
        this.$message({
          type: 'success',
          message: '更新用户状态成功!',
          duration: 1500
        })
      }
    },
    //监听添加用户对话框的关闭事件
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (valid) {
          let res = await this.$http.post('/users', this.addForm)
          if (res.meta.status === 201) {
            this.$message({
              type: 'success',
              message: '添加用户成功!',
              duration: 1500
            })
            this.addDialogVisible = false
            this.getUserList()
          } else {
            this.$message({
              type: 'error',
              message: '添加用户失败!',
              duration: 1500
            })
            return false
          }
        } else {
          return false
        }
      })
    },
    //展示用户编辑的对话框
    async showEditDialog(id) {
      this.editDialogVisible = true
      let res = await this.$http.get(`/users/${id}`)
      if (res.meta.status === 200) {
        this.editForm = res.data
      } else {
        this.$message({
          type: 'error',
          message: '查询用户失败!',
          duration: 1500
        })
        return false
      }
    },
    //监听编辑用户对话框的关闭事件
    editDialogClose() {
      this.$refs.editFormRef.resetFields()
    },
    //修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (valid) {
          let res = await this.$http.put('/users/' + this.editForm.id, {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          })
          if (res.meta.status === 200) {
            this.editDialogVisible = false
            this.getUserList()
            this.$message({
              type: 'success',
              message: '修改用户信息成功!',
              duration: 1500
            })
          } else {
            this.$message({
              type: 'error',
              message: '修改用户信息失败!',
              duration: 1500
            })
          }
        } else {
          return false
        }
      })
    },
    //根据ID删除对应的用户信息
    async removeUserById(id) {
      let confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(error => error)
      if (confirmResult === 'confirm') {
        let res = await this.$http.delete('/users/' + id)
        if (res.meta.status === 200) {
          this.getUserList()
          this.$message({
            type: 'success',
            message: '已删除成功!',
            duration: 1500
          })
        } else {
          this.$message({
            type: 'error',
            message: '删除失败!',
            duration: 1500
          })
          return false
        }
      } else {
        this.$message({
          type: 'info',
          message: '已取消了删除!',
          duration: 1500
        })
        return false
      }
    },
    async setRole(userInfo) {
      this.userInfo = userInfo
      this.setRoleDialogVisible = true
      let res = await this.$http.get('/roles')
      if (res.meta.status === 200) {
        this.rolesList = res.data
        this.$message({
          type: 'success',
          message: '获取角色列表成功!',
          duration: 1500
        })
      } else {
        this.$message({
          type: 'error',
          message: '获取角色列表失败!',
          duration: 1500
        })
        return false
      }
    },
    async saveRoleInfo() {
      if (this.selectedRoleId) {
        let res = await this.$http.put(`/users/${this.userInfo.id}/role`, {
          rid: this.selectedRoleId
        })
        if (res.meta.status === 200) {
          this.getUserList()
          this.setRoleDialogVisible = false
          this.$message({
            type: 'success',
            message: '分配用户角色成功!',
            duration: 1500
          })
        } else {
          this.$message({
            type: 'error',
            message: '分配用户角色失败!',
            duration: 1500
          })
          return false
        }
      } else {
        this.$message({
          type: 'error',
          message: '请选择要分配的角色!',
          duration: 1500
        })
        return false
      }
    },
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  },
  mounted() {
    //页面第一次挂载完毕，渲染页面
    this.getUserList()
  }
}
</script>
<style lang="less" scoped>
.el-card {
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.15) !important;
}
</style>
